1. FROM THE PRESIDENT

   Pages: 1 - 1

2. FROM THE EDITOR

   Pages: 3 - 4

3. Interspecific differences in male cannibalistic behavior between two sympatric cardinalfishes (Pisces: Apogonidae)

   • N. Okuda

   ARTICLE Pages: 5 - 10

4. Behaviors in agonistic interaction of the butterflyfish (Chaetodon lunulatus)

   • S. Yabuta

   ARTICLE Pages: 11 - 15

5. Male morphological characteristics and mating success in a protogynous coral reef fish, Halichoeres melanurus

   • T. Kuwamura
   • K. Karino
   • Y. Nakashima

   ARTICLE Pages: 17 - 23

6. Changing dominant–subordinate relationships during carcass preparation between burying beetle species (Nicrophorus: Silphidae: Coleoptera)

   • S. Suzuki

   ARTICLE Pages: 25 - 28

7. Insemination success discrepancy between long-term and short-term copulations in the provisioning shield bug, Parastrachia japonensis (Hemiptera: Cydnidae)

   • L. Filippi
   • M. Hironaka
   • S. Nomakuchi

   ARTICLE Pages: 29 - 36

8. Variable investments in nests and worker production by the foundresses of Polistes chinensis (Hymenoptera: Vespidae)

   • K. Kudô

   ARTICLE Pages: 37 - 41

9. The presence of neighbors affects waving display frequency by Scopimera globosa (Decapoda, Ocypodidae)

   • M. Moriito
   • K. Wada

   ARTICLE Pages: 43 - 45

10. The influence of females on male territorial dominance and female preference in dwelling place in laboratory mice

    • S. Hayashi
    • K. Tomihara

    ARTICLE Pages: 47 - 51

11. Simplified song in an island population of the bush warbler Cettia diphone

    • S. Hamao
    • K. Ueda

    ARTICLE Pages: 53 - 57

12. Intra- and interspecific cohabitation of scorpions in the field and the effect of density, food, and shelter on their interactions

    • M. R. Warburg

    ARTICLE Pages: 59 - 63